Compute Node unreachable

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• 20 marca 2012 03:29

   

   
  

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  Hello.

  Did you apply node template to these nodes?

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• 20 marca 2012 06:32

   

   
  

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  Hi,

  Sure I have assigned a Node Template (a very simple one),.. even when I take the node Offline and reassign it, the node stille keeps unreachable....

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• 27 marca 2012 23:47

   

   
  

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  Could you go to one fo the CNs and make sure "HPCNodeManagerService" is running? It would also be helpful to check out the event logs on the CNs.

  Michael

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• 29 marca 2012 09:40

   

   
  

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  HI,

  HPCNodeManagerService is running, and there are no error or warnings in the Event Log of the CN.

  BR

  Peter

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• 29 marca 2012 11:44

   

   
  

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  I found something:

  the Host name of the CN ist written in the hosts-file, and not listed in the DNS.
  So ping to the Server is working, but logically nslookup fail.

  Can that be a Problem for HPC?

  Peter

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• 3 kwietnia 2012 00:13

   

   
  

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  Hi Peter,

  It doesn't look like the problem with HPC, you should work towards getting your DNS server fixed. If DNS is not working, CNs will go unreachable.

  Michael

  • Zaproponowany jako odpowiedź przez Michael_Man 3 kwietnia 2012 00:13
  • Cofnięcie jako propozycji odpowiedzi przez Peter Schaunitzer 30 maja 2012 13:35
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• 29 maja 2012 10:51

   

   
  

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  Hi Michael,

  Now i have this Problem with all of my Compute Nodes. Do they all have to be an entry in the DNS?

  The configuration in ../etc/hosts is not enough?

  Because I can Ping the node and also Telnet from the Head Node to the Compute Node for the Node Managment Service is successfully (Port 1856)..

  BR

  Peter

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• 29 maja 2012 20:22

   

   
  

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  Hi Peter,

  I'd say if you have the same entry in ../etc/hosts on the HN, you hsould be good to go.

  Michael

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• 30 maja 2012 05:28

   

   
  

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  Hi,

  Yes, the Entry is also defined in the hosts-file of the Head node.

  But still: "Compute Node unreachable"....

  Everything is working fine:

  • Telnet from HN to CN on Port 1856 ==> OK
  • RDP from HN to CN ==> OK
  • Ping from HN to CN ==> OK
  • Ping from CN to HN ==> OK
  • Assign-Node Template to CN ==> OK

  So I don't understand why there is the Error-Message "HPC Node Manager Service unreachable".

  

  And thats the Problem on all CN:

  

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• 31 maja 2012 16:24

   

   
  

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  Hi Peter,

  Did you check your firewall? Could you try disabling firewalls on both sides?

  Michael

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• 1 czerwca 2012 05:15

   

   
  

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  Hi Michael,

  The firewall is disabled on both sides. And when i take a look at Tcpview or netstat, there are many open

  connections between cn and hn...

  BT

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• 1 czerwca 2012 17:11

   

   
  

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  And you have the latest HPC pack installed right?

  Please email me at micman@microsoft.com so we can further discuss your problem, it's definitely very interesting to look at...

  Michael

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• 4 czerwca 2012 08:46

   

   
  

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  Hi,

  Have you guys set out the problem? I have exactly the same problem, and do not know how to solve it.

  Any help is appreciated.

  Thanks,

  zhigao

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• 4 czerwca 2012 17:00

   

   
  

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  hi Zhigao,

  Not yet, did you try the same steps Peter did? Which version of HPC Pack are you running?

  Michael

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• 5 czerwca 2012 02:38

   

   
  

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  Hi Michael,

  I have checked everything listed above. My versioin is 2008 R2. I tried disable firewall on both sides and not working also. I am using topology 1, so now the HN firewall on and the CN firewall off. And i did not activate the license for both HN and CN. Does this related to some group policy problem or firewall rules? I am not quite sure about this part.

  I found one error from the Event Viewer-> Applications and services logs->Microsoft->HPC->Scheduler->operational->Node *** is unreachable because no IPV4 address could be found for it. But it has a internal IPV4 address 192.168.1.3 which is shown on the Node->Network tab. The details are below:

  //===========================================================================

  + <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  - <System>
    <Provider Name="Microsoft-HPC-Scheduler" Guid="{5B169E40-A3C7-4419-A919-87CD93F2964D}" />
    <EventID>8</EventID>
    <Version>0</Version>
    <Level>2</Level>
    <Task>0</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8000000000000000</Keywords>
    <TimeCreated SystemTime="2012-06-05T03:59:09.630972500Z" />
    <EventRecordID>2967</EventRecordID>
    <Correlation />
    <Execution ProcessID="1680" ThreadID="860" /> a
    <Channel>Microsoft-HPC-Scheduler/Operational</Channel>
    <Computer>WindowsHPCHead.WindowsHPCDomain.com</Computer>
    <Security UserID="S-1-5-18" />
    </System>
  - <EventData>
    <Data Name="Message">Node WINDOWSHPCN1001.WindowsHPCDomain.com is unreachable because no IPV4 address could be found for it.</Data>
    <Data Name="ExceptionString">Exception detail: Microsoft.Hpc.Scheduler.Properties.SchedulerException: Node WINDOWSHPCN1001.WindowsHPCDomain.com is unreachable because no IPV4 address could be found for it. at Microsoft.Hpc.Scheduler.Communicator.Remoting.NodeController.Resolve(String name) at Microsoft.Hpc.Scheduler.Communicator.Remoting.NodeController.CreateNewNodeManager(String nodeName) at Microsoft.Hpc.Scheduler.Communicator.Remoting.NodeController.PingUnreachableNode(String nodeName, PingArg arg, NodeCommunicatorCallBack`1 callback) Current stack: at Microsoft.Hpc.Scheduler.SchedulerTracing.TraceException(String facility, Exception exception) at Microsoft.Hpc.Scheduler.Communicator.Remoting.NodeController.PingUnreachableNode(String nodeName, PingArg arg, NodeCommunicatorCallBack`1 callback) at Microsoft.Hpc.Scheduler.Communicator.Remoting.NodeListener.ReportNodeInformationEx(String nodeName, ComputeClusterNodeInformation nodeInfo, String& logicalName) at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Int32 methodPtr, Boolean fExecuteInContext, Object[]& outArgs) at System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg, Int32 methodPtr, Boolean fExecuteInContext) at System.Runtime.Remoting.Messaging.ServerObjectTerminatorSink.SyncProcessMessage(IMessage reqMsg) at System.Runtime.Remoting.Messaging.ServerContextTerminatorSink.SyncProcessMessage(IMessage reqMsg) at System.Runtime.Remoting.Channels.CrossContextChannel.SyncProcessMessageCallback(Object[] args) at System.Runtime.Remoting.Channels.ChannelServices.DispatchMessage(IServerChannelSinkStack sinkStack, IMessage msg, IMessage& replyMsg) at System.Runtime.Remoting.Channels.BinaryServerFormatterSink.ProcessMessage(IServerChannelSinkStack sinkStack, IMessage requestMsg, ITransportHeaders requestHeaders, Stream requestStream, IMessage& responseMsg, ITransportHeaders& responseHeaders, Stream& responseStream) at System.Runtime.Remoting.Channels.Tcp.TcpServerTransportSink.ServiceRequest(Object state) at System.Runtime.Remoting.Channels.SocketHandler.ProcessRequestNow() at System.Runtime.Remoting.Channels.SocketHandler.BeginReadMessageCallback(IAsyncResult ar) at System.Net.LazyAsyncResult.Complete(IntPtr userToken) at System.Net.LazyAsyncResult.ProtectedInvokeCallback(Object result, IntPtr userToken) at System.Net.Security.NegotiateStream.ProcessFrameBody(Int32 readBytes, Byte[] buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.Security.NegotiateStream.ReadCallback(AsyncProtocolRequest asyncRequest) at System.Net.FixedSizeReader.CheckCompletionBeforeNextRead(Int32 bytes) at System.Net.FixedSizeReader.ReadCallback(IAsyncResult transportResult) at System.Net.LazyAsyncResult.Complete(IntPtr userToken) at System.Threading.ExecutionContext.runTryCode(Object userData) at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Net.ContextAwareResult.Complete(IntPtr userToken) at System.Net.LazyAsyncResult.ProtectedInvokeCallback(Object result, IntPtr userToken) at System.Net.Sockets.BaseOverlappedAsyncResult.CompletionPortCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* nativeOverlapped) at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP)</Data>
    </EventData>
    </Event>

  Thanks & Regards,

  zhigao

  
  
  
  
  
  

  • Zmodyfikowany przez zgcheng 5 czerwca 2012 04:05
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• 5 czerwca 2012 06:23

   

   
  

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  Hi,

  Thanks to Michael_Man:

  SP3 for HPC Pack 2008 R2 has solved my problem:

  http://www.microsoft.com/en-us/download/details.aspx?id=28017

  Now everything works fine.

  BR

  Peter

  • Oznaczony jako odpowiedź przez Peter Schaunitzer 5 czerwca 2012 06:23
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• 5 czerwca 2012 08:21

   

   
  

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  Hi,

  You are right. Update to SP3 solve the problem. Thanks so much.

  Thanks & Regards,

  zhiga

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